Booking Seats Virgin

[Charlangela]

We've booked with a TA flying with Virgin and I was assuming we would get to book our seats 11 months in advance which for us is 12th June for outbound.

TA is saying 9-6 months before, is this normal when booking non-direct. I really want to make sure all 6 of us are sat together, especially if the planes stay as they are as its a 2-4-2 and at least 3 of us want a window so ideally want a block of 3 x 2 (the trivial things in life).

If you've booked with a TA when did you get to book your seat?